A non-native macroalga is less attractive for herbivores but more susceptible to light limitation and grazing stress than a comparable native species

Table 1 Light intensity levels realized by placing different numbers of gauze layers on top of the experimental units

No. of gauze layers	Absolute light intensity (µmol m⁻² s⁻¹)	Relative light intensity (%)
0	27	100
1	18	66.7
2	11	40.7
3	6	22.2
4	5	18.5
5	3	11.1